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Lake Sherwood
Enhanced dataInteractive depth contours
Lake SherwoodAdams County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 66% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 27-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
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Fishing spots, food, lodging, marinas, and rentals around Lake Sherwood.
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Fishing forecast
Best windows for Lake Sherwood
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Lake Sherwood water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
75°FPeak summer
Seasonal estimate. Checking current National Weather Service air temperatures…
Warmest water of the year. Fish hold deeper or feed in low light; swimming and watersports are at their best.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at Lake Sherwood - Deep Hole Just Above Dam.
Sampled Jun 2026Volunteer monitoring since 2003
Somewhat hazy water — summer clarity of 5 ft is lower than most monitored Wisconsin lakes.
Based on July–August 2025 averages across 4 volunteer readings.58Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
5 ftJul–Aug 2025 avg (2 readings)
HazyImproving — up ~15% vs earlier years
Clearer than 30% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
18.5 µg/LJul–Aug 2025 avg (2 readings)
ElevatedStable since 2018
NutrientsTotal phosphorus — fuels plant & algae growth
15 µg/LLatest single sample · 2026-06-22
Low2017–2025
Low phosphorus means light plant/algae growth pressure.
All readings by year · station details · methodology
Summer averages (July/August)
July/August means; counts in parentheses show how many samples went into each average.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2025 | 5.0 ft (2) | 18.5 µg/L (2) | 22.0 µg/L (1) |
| 2024 | 6.4 ft (2) | 15.0 µg/L (3) | — |
| 2023 | 6.3 ft (2) | 17.8 µg/L (4) | 16.0 µg/L (1) |
| 2022 | 5.8 ft (3) | 16.0 µg/L (2) | — |
| 2021 | 4.7 ft (3) | 20.7 µg/L (3) | — |
| 2020 | 4.8 ft (3) | 16.0 µg/L (4) | — |
| 2019 | 6.6 ft (3) | 11.3 µg/L (3) | — |
| 2018 | 2.6 ft (3) | 21.0 µg/L (2) | — |
| 2017 | 3.3 ft (2) | 34.0 µg/L (3) | 72.0 µg/L (1) |
| 2016 | 3.4 ft (4) | 32.0 µg/L (3) | — |
Latest individual samples: Secchi 6 ft (2026-06-22), chlorophyll-a 13 µg/L (2026-06-22), and total phosphorus 15 µg/L (2026-06-22).
Secchi clarity is how deep a black-and-white disk stays visible from the surface — more feet means clearer water.
Chlorophyll-a is an algae pigment; higher values signal more algae in the water column.
Total phosphorus is a nutrient that feeds algae and aquatic plants. It is not a weed survey — depth, bottom type, water movement, and management change the actual lake experience.
Lake Sherwood - Deep Hole Just Above DamStation 013038 · TSI based on chlorophyll
Modeled from DNR/CLMN monitoring — not a safety or swim-condition report. Verify current conditions locally. LakeList verified 2026-07-12.Official Wisconsin information
Plan with DNR sources
LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.
Historical DNR depth maps2 converted map sheetsView DNR depth mapHistorical map · not for navigationFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance
Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.
Historical Wisconsin DNR maps
Lake Sherwood depth maps
2 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Lake Sherwood · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 1377900 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.
Wisconsin DNR fisheries survey
Fish population survey
Structured LakeList extraction from the 2021 DNR fisheries survey. Population estimates, density, and catch-rate indices use different units, methods, and scopes, so each value is presented in its original form rather than normalized against a different measure.
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextA 2021 late-spring electrofishing survey assessed Lake Sherwood largemouth bass and panfish and evaluated the experimental panfish regulation.
A 2021 late-spring electrofishing survey assessed Lake Sherwood largemouth bass and panfish and evaluated the experimental panfish regulation.
- Historical fisheries snapshot; not current fishing regulations or navigation guidance.
- Only metrics explicitly supported by the cited source page were promoted.
- Species captured as protocol by-catch are labeled as such in method and interpretation.
Bluegill
209 fishSurvey catch · p. 5102 fish/mileCPUE for fish >=3 inches · p. 55.3 inchesAverage length · p. 532 indexPSD-Q · p. 5
Largemouth Bass
228 fishSurvey catch · p. 538 fish/mileCPUE for fish >=8 inches · p. 511.8 inchesAverage length · p. 571 indexPSD-Q · p. 7
Pumpkinseed
42 fish/mileCPUE for fish >=3 inches · p. 65.7 inchesAverage length · p. 633 indexProportional Stock Density · p. 6
Walleye
7 fish/mileTotal CPUE · p. 6
Yellow Perch
21 fish/mileTotal CPUE · p. 6
Lake Sherwood late spring shocking survey, 2021Matched by exact wbic name county · WBICs 1377900 · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this public report with source attribution.
216surface acres
27max depth feet
1public access points
44.2057, -89.8051latitude, longitude
Access
Public access points
Boat launchAccess - near State Hwy 1344.20281, -89.80683Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassPanfishNorthern PikeWalleye
Depth FAQ
How deep is Lake Sherwood?
Lake Sherwood is 27 feet deep at its deepest point and averages about 10 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Sherwood?
Yes. LakeList publishes a free interactive depth contour map of Lake Sherwood at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Lake Sherwood depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Mapsname, coordinates, county, source identifiers
LakeList record updated 2026-07-14
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